arr = [['attachment_id`', 'bigint', "'附件ID'"], ['`tenant_id`', 'bigint', "'租户ID'"], ['`project_id`', 'bigint', "'项目ID'"], ['`vest_entity_id`', 'bigint', "'归属实体ID'"], ['`vest_entity_type`', 'tinyint', "'归属实体类型'"], ['`attachment_type`', 'tinyint', "'附件类型'"], ['`attachment_name`', 'string', "'附件原名'"], ['`attachment_unique_name`', 'string', "'附件唯一名'"], ['`attachment_path`', 'string', "'附件路径'"], ['`remark`', 'string', "'备注'"], ['`status`', 'tinyint', "'状态'"], ['`is_delete`', 'tinyint', "'逻辑删除字段"], ['`create_user`', 'bigint', "'创建人'"], ['`create_time`', 'timestamp', "'创建时间'"], ['`update_user`', 'bigint', "'更新人'"], ['`update_time`', 'timestamp', "'更新时间'"]]

import numpy as np

np_arr = np.array(arr)

print(np_arr[:,0])